If the earwax in the patient’s ear is hard and difficult to clean and remove smoothly, you can use phenol glycerin ear drops or sodium bicarbonate solution in the ear canal to soften and dilute the earwax, which will help to further remove the secretion smoothly. If the earwax mass is too large and hard, it may block the ear canal and cause symptoms such as stuffiness, hearing loss, or even tinnitus. If the earwax is too hard, you need to avoid forcibly removing it to avoid damaging the skin of the ear canal or even the eardrum, and you need to soften and dilute the earwax sufficiently before cleaning and removing it.